In Bhagwat Geeta, Krishna says different paths of Yoga. One of them is the path of devotion, Bhakti Yoga.
There is this beautiful story about the understanding of what is Bhakti Yoga..
Once Krishna left Gokul and Vrindavan, he never went back there. One day, Krishna was with his friend Uddhav. and Uddhav said to Krishna that "O Krishna, you say wise words, you share so much of wisdom with us about various aspects of life, it makes our life more meaningful, more enjoyable. You have never gone back to Gokul and Vrindavan and therefore, all the Gopas and Gopis must be in pain of missing you so much. I believe they need this amazing knowledge of yours to handle their pain and sufferings."
Krishna on listening to this says " Oh dear Uddhav, you are such amazing friend of mine. Why don't you go there and impart this knowledge with them? I am sure that will help them reducing that intensity of the pain of separation."
Hence, Uddhav decided to go to Gokul. The news of Krishna's friend coming to Gokul was so exhilarating for Gopas and Gopis that they all were so excited to meet Uddhav. Just because he was Krishna's friend and they were all expecting him to say how Krishna was, what was he doing nowadays and every minute details about their love, Krishna. But, Uddhav on his arrival, did not say anything about Krishna. Instead, he started speaking the knowledge. Gopas and Gopis had so much of patience that they all honoured the knowledge that he spoke, but after hearing what Uddhav had to say, one Gopi went to him n said, " Uddhavji, the knowledge you are speaking is so beautiful and wonderful. It is simply amazing. but, our hearts and minds are so full of Krishna that we are confused where to keep this knowledge?" and Uddhav realized that he was amongst so deeply devoted souls who did not need any knowledge. They were all enlightened just coz they felt so strong connection with them.
Although they were miles apart physically, they all felt so connected with Krishna. Krishna was living in their heart and minds forever. They felt His presence everywhere. and it was not the PAIN of separation but it was simply the longing for their love.
This is the power of Bhakti Yoga. Once you become true Bhakt, true devotee, simply your connection with the divine blossoms your life. and may be for that reason, it is said that there is not better path than Bhakti Yoga. It is the best, sweetest and highest path. You just merge with your divine and your devotion leads you towards enlightenment.