Always pray with a fervent heart; and to attain to this, never eat and drink excessively. Remember with Whom you are conversing.
Men very often forget with Whom they are conversing during prayer,
Who are the witnesses of their prayer.
They forget that they are conversing with the Vigilant and the All-seeing God; that all the Heavenly Powers and the saints of God are listening to their conversation.
St. John of Kronstadt