"And when He had sent the multitudes away,He went up on a mountain by Himself to pray. Now when evening came, He was alone there" (Mat 14:23).
How could anyone express the anguish of a loner better than this! What went through his mind during this time, when the evening found Him alone? When he prayed later, that the cup may, if such be HIS will, pass from him. Total, unspeakable loneliness.
All prayer is in utter loneliness even when you pray in the " street corner".