"Once upon a time there was a Devotee of Lord Krishna. That Devotee once came across a very Learned man who knew about all the knowledge of Vedas, Puranas & all other religious texts. That Devotee of Lord Krishna was holding a copy of the Bhagwat Gita in his hand, and his eyes were full of tears. The Learned man thought that the Devotee was weeping & having the tears in his eyes, as he is unable to understand some of the teachings of the Bhagwat Gita. He came to the Devotee and told him that he need not weep as now he has come to help him. Now if he likes he can narrate each shaloka of each chapter of Bhagwat Gita to him, if he finds it difficult to understand the Bhagwat Gita.
To this counsel of Learned man, the Devotee of Lord Krishna responded, “Sir, I am not crying because I cannot read & understand Bhagwat Gita but tears are coming into my eyes as I see the Lord Krishna right in front of me. I see Lord Krishna on every page of Bhagwat Gita. Every page I turn to, I see Arjuna’s chariot. I see Arjuna’s charioteer, Lord Krishna. These are my emotions towards Lord Krishna which are coming out as tears in my eyes. At hearing this, the Learned man came to understand that Devotion to God is superior to having just the knowledge of God."
Lord Krishna is also the Lord of Love. He is love infinite. If you shall love Him, then He too shall shower His unconditional love upon you. "Gopis of Vrindavan" fell in deep love with Lord Krishna. Though Lord Krishna is almighty, all powerful God & everyone prays to Him but "Gopis of Vrindavan", including "Radha Rani" fell in deep Love with Lord Krishna & in their case there was a burning desire in their mind to meet Him. In their case too tears of emotions used to come in their eyes due to their Love for Lord Krishna.
So let's also love Lord Krishna like the above mentioned Devotee & like the "Gopis of Vrindavan". If you shall love God a little bit then He shall love you ten folds, as God is hungry of love & devotion only.
Below are few verses of Bhagwat Gita which tells that Lord Krishna too loves His devotees & always fulfills their desires & always protect them:
yo mam smarati nityasah
tasyaham sulabhah partha
nitya-yuktasya yoginah" (Bhagwat Gita: Chapter Eight verse 14)
"Lord Sri Krishna says: Whosoever, always & constantly remembers Me with undivided mind; by that person, I am easy to obtain, O Arjuna, because of his constant engagement in the devotional service to Me."
"samo ’ham sarva-bhutesu
na me dvesyo ’sti na priyah
ye bhajanti tu mam bhaktya
mayi te tesu chapy aham" (Bhagwat Gita: Chapter Nine verse 29)
"Sri Krishna said: I envy no one, nor am I partial to anyone. I am equal to all beings. But whoever renders service unto Me in devotion is very dear to Me, and I am also very dear to him."
"ananyas cintayanto mam
ye janah paryupasate
yoga-ksemam vahamy aham" (Bhagwat Gita: Chapter Nine verse 22)
"Sri Krishna said: But those who always worship Me with exclusive devotion, meditating on My transcendental form—to them I carry what they lack, and I preserve what they have."
So let's have full devotion towards Lord Krishna. As per the "Bhagwat Puran":
"Once the mind of a person is full of surrender to the lotus feet of Lord Krishna & the mind is full of hankering after Lord's qualities, then that person shall never encounter Yamarâja (Lord of death) and his superintendents, or even in one's dreams meet his servants carrying the ropes to bind, because doing such Devotional service to Lord Krishna is the right atonement for all sins."
Jai Sri Krishna