WORKSHOP ON BUDDHISM

"Creating a Sacred Space," a workshop examining the principles of Buddhism, will begin at 12:30 p.m. today at Vajrayogini Buddhist Center, 1426 21st St. NW. Admission is $25, $15 for students and seniors. 202-294-8156.

EUCHARISTIC CONGRESS

"Heaven Unites With Earth," a congress on the Eucharist, continues today from 9 a.m. to 6:30 p.m. at the Basilica of the National Shrine of the Immaculate Conception, 400 Michigan Ave. SE. Free. 202-832-2575. For more information, visit www.cmswr.org.

THE EUCHARIST IN ART

"The Eucharist: Images and Types in Art History," a free lecture by Judy Scott Feldman, is scheduled for 3 p.m. today at Pope John Paul II Cultural Center, 3900 Harewood Rd. NE. 202-635-5400.

CHORAL CONCERT

The vocal group Performing Artists Under the Lord will perform at 4 p.m. today at Lincoln Congregational Temple Church, 1701 11th St. NW. Admission is $15. 202-332-2640.

WEEKEND TENT REVIVAL

A free three-day tent revival will begin at 5 p.m. today at St. Francis de Sales Catholic Church, 37730 St. Francis Ct., Purcellville. 540-338-6381.

BENEFIT BRASS CONCERT

"A World of Difference," a performance featuring the Dominion Brass to benefit world medical missions, is scheduled for 7:30 p.m. today at the Falls Church Episcopal, 115 E. Fairfax St., Falls Church. An offering will be accepted. 703-534-5465.

THEOLOGIAN'S TALK ON JESUS

"Jesus Christ Universal Savior and the Ways of Salvation," a free lecture by the Rev. Jacques Dupuis, is scheduled for 8 tonight at Byron Auditorium, Catholic University, 620 Michigan Ave. NE. 202-319-5519.

RETREAT ON ILLNESS

"Trust God," a retreat for people with serious illness or chronic pain that features Joan Fronc, will begin at 9:30 a.m. tomorrow at Bon Secours Spiritual Center, 1525 Marriottsville Rd., Marriottsville. Admission is $40. 410-442-1320.

JOHN WALKER DAY

A service for John Walker Day, celebrating the life of Bishop John Thomas Walker, Washington's first African American Episcopal bishop, will begin at 4 p.m. tomorrow at Washington National Cathedral, Wisconsin and Massachusetts avenues NW. A biography, "John Walker: A Man for the 21st Century," will be introduced at 1 p.m. today by the author, Robert Harrison, and Maria Walker, the bishop's widow, in St. Joseph's Chapel at the cathedral. 202-537-6200.

A SERVICE IN JAZZ

A jazz worship service featuring the Tootsie Gripper Ensemble will begin at 4 p.m. tomorrow at Metropolitan AME Church, 1518 M St. NW. Admission is $15, $10 for students and seniors. 202-331-1426.

PROGRAM OF SPIRITUALS

A performance of Negro spirituals by soprano Randye Jones and pianist Francis Conlon will begin at 5 p.m. tomorrow at Church of the Annunciation, 3810 Massachusetts Ave. NW. Admission is $10.

STUDY OF TWO SAINTS

"Spirituality of the Little Flower and Teresa of Avila," a retreat featuring the Rev. Patrick McMahon, will begin at 9:30 a.m. Tuesday at Dominican Retreat, 7103 Old Dominion Dr., McLean. Registration is $40. 703-356-4243.

TALK ON RELIGION AND DUTY

"Faithful Citizenship: How Does Faith Shape My Conscience?," a free lecture by the Rev. Kevin O'Neil, will begin at 12:45 p.m. Wednesday and 6:30 p.m. Thursday at Cathedral of St. Matthew the Apostle, 1725 Rhode Island Ave. NW. 202-347-3215.

FORUM ON ISLAM AND DEMOCRACY

"Islam and Democracy," a forum presentation by Radwan Masmoudi, president of the Center for the Study of Islam and Democracy, will begin at noon Friday at New York Avenue Presbyterian Church, 1313 New York Ave. NW. 202-393-3700.

-- Timothy Wilson

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The late Bishop John Walker is the subject of a new biography.