Answer
Specifically, yesterday’s verse explained that the great souls, the mahajanas, remain engaged in devotional service under all kinds of circumstances. No matter what situation they face, they continue their devotional service without interruption.
From their lives, we learn how we too should remain engaged in devotional service in every circumstance. For example, chanting the Hare Krishna maha-mantra can be done in any condition. Even if there is difficulty with the body, the mind, or external situations, one can still chant Hare Krishna. If we sincerely try, some form of devotional service can always be performed.
By remaining engaged in devotional service under all circumstances, we remain safe, protected, and guaranteed to make spiritual progress. Ultimately, this leads to complete success at the end of this very life.
This is the lesson the mahajanas teach through their own example. Their lives are fully centered on devotional service at all times. They have no other real engagement or purpose.
To follow in their footsteps means that, according to our own condition and situation, we should also remain engaged in devotional service. There are many varieties of devotional activities, and according to our capacity and circumstances, we can choose and perform whichever devotional service is possible for us at a given time.