Allah the Al-Mighty says:

﴾Verily! As-Safâ and Al-Marwah (two mountains in Makkah) are of the Symbols of Allâh. ﴿

[Al-Baqarah: 158]

 In Arabic language masha'er means symbols and rites… It means the acts that a pilgrim is ordained to do in those places. The singular is Sha'eera.
In the noble Ayah:

﴾Then when you leave 'Arafat,remember Allah (by glorifying His Praises, i.e. prayers and invocations, etc.) at the Mash'ar-il-Haram.﴿

[Al-Baqarah, 198]

 The word "mash'ar" means the prominent place. Its plural is "masha'er" and the sacred masha'er are the sacred places.
  When a pilrgrim is in the sacred masha'er, shouldn't he have sacred feelings?
  When a pilgrim circumambulates the Ka'ba, in the Sacred House of Allah, shouldn't he feel like a lover circumambulating his beloved? When he performs sa'i between Safa and Marwa, shouldn't he feel like one seeking something he is longing for?... When he slaughters udheya, shouldn't he feel that he is slaughtering his lust that veils him from his Lord…? When he stones Satan, shouldn’t he feel that it is a symbol of his eternal enmity with satan..? When he visits the noble Rawda of the prophet (PBUH), shouldn't he feel that he is in paradise…?
  In conclusion, a pilgrim, when performing the rites of Hajj, in the sacred places, should have sacred feelings that vary with the various places and rites, as each rite gives a certain feeling, and this feeling is the result of his faith.
 This makes it clear that Hajj is an act of worship, based on a distinguished connection with Allah, and its price is full dedication, as it can only be performed in Allah's Sacred House. Thus, a pilgrim must leave his country, family and friends, bear travel difficulties, face its hazards, spend money seeking Allah's Content. However, as the expenses of this act of worship are great, so are its fruits.
  A Muslim goes to the Sacred House of Allah, and leaves behind all the concerns of sustenance and living, work and earnings, the worries of his wife and children, and the concerns of the present and the future. After he wears Iharm clothes (not sewed clothes) from Miqat( certain places set for starting Ihram), he becomes entirely distant from this world, and he devotes himself to Allah the Almighty saying:

((O my Lord, Here have I come to You my Lord, Here I am. There is no partner with You. Here I am. Truly, the praise and the provisions are Yours, and so is the dominion and sovereignty. There is no partner with you))

 This Talbiyah is like a response to the call of Allah, that a Believer feels deep inside his heart as if Allah is saying to him: O My servant, leave everything and come to Me. O my servant, come to Me so that I would relieve you of worldly concerns which are as great as mountains, and which are a tremendous burden on you. Come to Me, O My servant and I will purify you from all (illicit) desires that spoil your life.

For how long you’ll be consumed in desires
And for what you’ve committed you’ll be held responsible
***

 Come, O My servant, feel the taste of My Love.. Come, O My servant, taste the sweetness of the Secret Conversation with Me.
  ((O my Lord, Here have I come to You my Lord, Here I am. There is no partner with You. Here I am. Truly, the praise and the provisions are Yours, and so is the dominion and sovereignty. There is no partner with you))
  Come, O My servant so that I will show you some of My Great Signs, I will show you the kingdom of the earth and the heavens.I will illuminate your heart with My Light by which all darkness is dispelled.I will fill your heart with the tranquility that many people of the earth and the heavens miss.I will fill your soul with content and satisfaction without which many souls become miserable.I will bring you out from the muddy shallows of lusts unto the heavens of My Vicinity.I will save you from the solitude of remoteness to the delight of closeness to Me.I will save you from the horror of Shirk and the humiliation of hypocrisy to the calmness of tawheed and the glory of obedience.
  ((O my Lord, Here I have come to You, my Lord, Here I am. There is no partner with You. Here I am. Truly, the praise and the provisions are Yours, and so is the dominion and sovereignty. There is no partner with You.))
 Come, My servant, so that I will take you away from this evanescent life, from your monotonous job, and from your considerable worries to the horizon of My Knowledge, the honor of remembering Me, and the delight of being close to Me. Come, My servant, put your worries, your troubles, and your fears before Me, and I guarantee their demise. Come, My servant and mention your need to Me, ask Me and I guarantee that you will get your demand:
 " Mosques are My Houses on earth, so blessed be he who has ablution at his house and then visits Me in My House, for The Host is going to honor the guest."
  So how would My honor to you be when you have come from distant places, withstood hardship, paid expenses, visited Me in My Sacred House, stood at Arafah, and sought My Pleasure.
  ((O my Lord, Here I have come to You my Lord, Here I am. There is no partner with You. Here I am. Truly, the praise and the provisions are Yours, and so is the dominion and sovereignty. There is no partner with you.))
 Come, My servant, and visit Me in My Sacred House, so all your concerns will go away, you will see the truth, and prepare yourself to meet Me.

"Verily a servant, whom I gave a healthy body, and I expanded for him his livelihood, and five years pass upon him that he does not come to Me (for Hajj), then he is deprived."

 Come, My servant, circumambulate the Ka'bah the way someone goes around his beloved, do Sa’i (walking) between Safa and Marwah the way someone yearns to reach his purpose. Come, My servant, and kiss the Black Stone, and shed tears for the time you have spent on doing things you were not created for. Pledge Me to leave sins and violations and to perform good deeds and acts of worship. Be to Me as I want you to, and I will be to you as you want Me to, Be to me as I want you to, and do not inform Me of what is right for you. Actually, if you give in to Me in what I want, I will provide you with everything you want, otherwise I will overburden you in seeking what you want, then things will turn out the way I want. I have created everything in the universe for you so do not be overstrained, and I have created you for (obeying) Me so do not play (do not be negligent). By My Right upon you, do not be busy with what I guarantee for you at the expense of what I enjoin on you.
((O my Lord, Here I am at Your service, Here I am. There is no partner with You. Here I am. Truly, the praise and the provisions are Yours, and so is the dominion and sovereignty. There is no partner with you.))
Come, My servant to Arafat, on the day of the Largest Meeting, Come to expose to a whiff of Mine that cleanses your heart from all dirt and lusts, and purifies your soul from every blemish and distress. These whiffs fill your heart with happiness and tranquility, and the bliss that will spread in your soul will be enough for the people of a whole country, then you will not regret but for an hour, you have spent in gossip, asking too many questions, and wasting money.
Come to Arafat, on the day of Arafah, to know that you rank first above all creatures; the earth and the heavens were created to serve you, you bore the Trust, which the heavens, the earth and the mountains declined to bear and feared from, and I have brought you to this world (I have created you) to get to know Me, and to perform a good deed that grants you Paradise of Eternity.
Come to Arafat, on the day of Arafah, to know that the Man is at loss, Except for those who have believed and done righteous deeds and advised each other to truth and advised each other to patience. Verily, if you find Me, you will find everything, and if you miss Me you will miss everything, and I Am more beloved to you than anything else.
After the believer tastes the sweetness of secret conversation in Arafat, through his supplication, performing prayers, being close to Allah, and the magnificence of this meeting, he will indulge in the pleasure of Vicinity. At this time, he will look down on this life and it will pass from his heart to his hands (although he possesses it, his heart will not be attached to it), and the Hereafter will become his largest concern, and then he will seek a seat of truth (i.e. Paradise), near the Omnipotent King (Allah the Almighty). Actually, it will be revealed to the pilgrim in Arafat that every bad thing that has occurred to him in his life is out of pure justice, virtue, and mercy, and he will fully comprehend the following ayah:

﴾And it may be that you dislike a thing which is good for you and that you like a thing which is bad for you. Allah knows but you do not know.﴿

[Al-Baqarah, 216]