Knowing if Allah is pleased with him?

How Can a Person know if Allāh is pleased With Him?

Greatfull if you could enlighten me how do a person know his Lord, Allah Almighty is pleased with him?

In the name of Allāh, the Most Gracious, the Most Merciful;

All the praise and Thanks is due to Allāh, the Lord of al-'ālameen. There is none worthy of worship except Allāh, and that Muhammad, Sallallāhu ‘alayhi wasallam is His Messenger.

1 - Among the signs that the Lord is pleased with His slave is that He guides him doing good deeds and avoiding haram things. 

This is confirmed by the words of Allāh: “While as for those who accept guidance, He increases their guidance and bestows on them their piety” [Muhammad, 47:17] ; “As for those who strive hard in Us (Our Cause), We will surely guide them to Our paths (i.e. Allāh’s religion of Islamic Monotheism)” [Al -‘Ankabut, 29:69] 

But if a person is hindered from doing good deeds and avoiding haram things – which we seek refuge with Allāh Subhānahu wa ta‘ala – then that is a sign that Allāh is not pleased with him.

"But whosoever turns away from My Reminder (i.e. neither believes in this Qur'an nor acts on its orders, etc.) verily, for him is a life of hardship, and We shall raise him up blind on the Day of Resurrection."; He will say, "My Lord, why have you raised me blind while I was [once] seeing?" ; (Allāh) will say: "Like this, Our Ayat (proofs, evidences, verses, lessons, signs, revelations, etc.) came unto you, but you disregarded them (i.e. you left them, did not think deeply in them, and you turned away from them), and so this Day, you will be neglected (in the Hell-fire, away from Allāh's Mercy)." [Surah Ta-Ha, 20:124-126]

2 - Allāh has also explained in His Book that the sign of His being pleased with His slave and of His guidance is that He opens his heart to true guidance and true faith. And the sign of misguidance and being far from the Straight Path is distress and constriction in the heart. 

Allāh Subhānahu wa ta‘ala says: 

“And whomsoever Allāh wills to guide, He opens his breast to Islam; and whomsoever He wills to send astray, He makes his breast closed and constricted, as if he is climbing up to the sky. Thus Allāh puts the wrath on those who believe not” [Al-An’am, 6:125] 

Ibn 'Abbas (radiyallāhu‘anhu) said, commenting on this verse: “And whomsoever Allāh wills to guide…” means Allāh opens his heart to Tawhid and belief therein.  [Tafsir Ibn Kathir, 2/175]

3 - Another sign of Allāh’s love for His slave and His being pleased with him is that He makes him beloved to His slaves. 

Abu Hurayrah (radiyallāhu‘anhu) narrated that the Prophet (Sallallāhu ‘alayhi wasallam) said: 

“When Allāh loves a person, He calls out to Jibreel: ‘Allāh loves So and so,’ so Jibreel loves him. Then Jibreel calls out to the people of heaven, ‘Allāh loves So and so, so love him.’ So the people of heaven love him and he finds acceptance on earth.”  [Narrated by Al-Bukhari (3209) and Muslim (2637)]

Al-Nawawi (rahimahullāh) said: “and he finds acceptance on earth” means that people love him and are pleased to see him, so their hearts incline towards him. It says in another report: “and he finds love on earth.” 

And Allāh Almighty knows best.

[Via Islam Q&A (34829)]