Attainment of love is the greatest achievement. Krishna Prem is that wealth without which even the so-called richest are also the poorest. We often wonder how we can attain this Krishna-prem. Do we have a clear answer to this crucial question- "How to attain Krishna Prem?"
The best answer to this question is given by Shrila Bhaktisiddhant Saraswati Thakur Prabhupad as follows,
"It is natural to develop love for those whom we serve. Serve Kṛṣṇa and you will become attached to Him."
Now what is the best way to serve Krishna?
The best way to serve Krishna is to serve His devotees, especially, Sri Guru.
Who is the Guru of all Gurus and the topmost devotee?
Adi-Guru, Vaishnav-dham, Doyal NITAI
Therefore, Nitai Seva is the best way to attain Krishna Prem.
P.S. What is the best way to serve Nitai?
Achar and Prachar of Nitailekhan and Nitai Nam-Lila Shravan-Kirtan.