Orientation to Zen Practice, basic instruction in zazen (sitting meditation) and information about practice forms for beginners or those wanting a refresher, 9 a.m.-noon today, Palolo Zen Center of the Honolulu Diamond Sangha; free. 735-1347.

Overnight Vigil, begins with 9 p.m. Mass today, followed by exposition of the sacraments with rosary and chaplet throughout the night; benediction at 6:30 and 7 a.m. Mass tomorrow morning, Blessed Sacrament Church, 2124 Pauoa Road; sponsored by the United Hearts of Jesus and Mary. 531-6980.

Doctrine of the Holy Spirit, study of the person and work of the Holy Spirit, 11:30 a.m.-12:30 p.m. Tuesdays, Aug. 15-Nov. 14, City of Refuge Christian Church, Waipahu; free. 228-9310.

Sri Krishna Janmastami (Birth Anniversary of Lord Sri Krishna), devotional music and dance, bathing of the statue of Lord Krishna, baby Krishna look-alike contest for children, feast foods, 5 p.m.-midnight Wednesday, Hare Krishna Temple, Nu'uanu; free, gifts of devotion such as fruit, flowers, incense are appropriate. 389-1819.

Dharma Circles, open discussion of Buddhism and the Buddha's teachings for Buddhists and non-Buddhists, 7-9 p.m. Wednesday, Pacific Buddhist Academy, room UC103; free. 522-7395.

Building a Prayer Life, learn what prayer is, why we should pray and six steps to an effective prayer life, 11:30 a.m.-12:30 p.m. Thursdays, Aug. 17-Nov. 16, City of Refuge Christian Church, Waipahu; free. 228-9310.

How to Walk 2006: "The Overcoming Christian," learn how to be victorious over the temptations of the world, 8 a.m.-4 p.m. Saturday, Calvary Chapel, Komo Mai Drive, 'Aiea; free. 524-0844.

Send announcements with contact name and phone number to: Faith Calendar, The Honolulu Advertiser, P.O. Box 3110, Honolulu, HI 96802; faith@honoluluadvertiser.com with "Faith Cal" in the subject line; or fax 525-8055.