Balarama means spiritual strength. So this spiritual strength is coming from the Supreme Lord. The strength to withstand the disturbances of material world, the strength to continue to serve Krishna despite whatever impediment comes, it is bestowed upon that devotee who always take shelter of the Lord in all circumstances. Krishna provides him unlimited strength because a devotee knows that it is not his own. Those who receive strength, but do not understand that it is coming from God, they use it in defiance of the Lord, and ultimately whatever achievements or strength they have gained will be taken away.
August 27, 1992, Lvov