A thirsty person will readily be willing to accept an offer from a friend who wants to refresh him with a bottle of cool water. Similarly, those who are spiritually thirsty, or conscious of their spiritual needs, would not hesitate to accept Jesus' invitation to drink from him so to speak, or receive refreshing message of God's words from him.
The message that Jesus provides is very heartwarming, capable of binding up broken hearts and brings comfort to those who are disillusioned by the deceptions promoted by the religious leaders of his time and even those of our own time. What a relief it can be for those of us who would respond gto this invitation:
If anyone thirsts let him come to me and drink. [John 7:37]