House of Worship-devotional benefits - divine confirmations

The specific times for prayer must be observed in order for any enterprise to prosper and develop (through Divine bestowals and confirmations)

(I.e., Community dawn prayers, but perhaps the following is more in reference to Obligatory Prayer and Recitation of the verses of God?)

"...Moreover the friends must observe the specific times for the remembrance of God, meditation, devotion and prayer, as it is highly unlikely, nay, rather impossible, that any enterprise should prosper and develop short of Divine bestowals and confirmations...."

(From a letter of the Guardian to the Baha'is of the East, December 19, 1923: Living the Life, p. 1 (no. 1267)

The gathering together of people for prayer allows their prayers to become acceptable (to God or due to their unity?)

"Man may say: 'I can pray to God whenever I wish, when the feelings of my heart are drawn to God; when I am in the wilderness, when I am in the city, or wherever I may be. Why should I go where others are gathered upon a special day, at a certain hour, to unite my prayers with theirs, when I may not be in a frame of mind for praying?' To think in this way is useless imagination, for where many are gathered together their force is greater. Separate soldiers fighting alone and individually have not the force of a united army. If all the soldiers in this spiritual war gather together, then their united spiritual feelings help each other, and their prayers become acceptable"

('Abdu'l-Bahá, from notes taken by Miss Ethel J. Rosenberg) (quoted in Bahá'u'lláh and the New Era, p. 93-94)