Faisal Rashid and his wife jumped out of bed at 3 a.m. in a scramble to secure spots for this year’s Hajj before packages sold out. Adrenaline was running high as he tried to navigate the digital booking platform from their Pasadena, California, home. The moment, back in February, when the couple learned they had spots in the annual Islamic pilgrimage to Mecca in Saudi Arabia was so emotional that recalling it still brings them to tears.“It was a very, very joyful experience,” said 35-year-old Rashid, his voice wavering. “My wife was already crying, praying. We were very grateful that this happened,” he added, a tear rolling down his face.A lot has changed since that day — the Iran war erupted and widened before a tenuous ceasefire was reached. The couple’s resolve to perform the pilgrimage hasn’t, however.They are among U.S. Muslims who are joining a sea of pilgrims converging on Saudi Arabia from around the world for a Hajj that this year has been approaching against the backdrop of regional tensions and uncertainty about the conflict. The Hajj will officially start on Monday.

At the Hajj, Muslims unite in religious rituals and acts of worship as they fulfill one of the Five Pillars of Islam. A religious obligation for Muslims who are physically and financially able to do it, Hajj can be the spiritual experience of a lifetime for the pilgrims and a chance to seek God’s forgiveness and the erasure of past sins.