At Berkeley, a vast number of undergraduates are Asian-American, with many coming from observant Christian homes, said the Rev. Randy Bare, the Presbyterian campus pastor. "That's new, and it's a remarkable shift," Bare said.

There are 50 to 60 Christian groups on campus, and student attendance at Catholic and Presbyterian churches near campus has picked up significantly, he said. On many other campuses, though, the renewed interest in faith and spirituality has not necessarily translated into increased attendance at religious services.

The Rev. Lloyd Steffen, the chaplain at Lehigh University, is among those who think the war in Iraq has contributed to the interest in religion among students. "I suspect a lot of that has to do with uncertainty over the war," Steffen said.

"My theory is that the baby boomers decided they weren't going to impose their religious life on their children the way their parents imposed it on them," Steffen continued. "The idea was to let them come to it themselves. And then they get to campus and things happen; someone dies, a suicide occurs. Real issues arise for them, and they sometimes feel that they don't have resources to deal with them. And sometimes they turn to religion and courses in religion."

Increased participation in community service may also reflect spiritual yearning of students. "We don't use that kind of spiritual language anymore," said Rebecca S. Chopp, the Colgate president. "But if you look at the students, they do."

Some sociologists who study religion are skeptical that students' attitudes have changed significantly, citing a lack of data to compare current students with those of previous generations. But even some of those concerned about the data say something has shifted.

"All I hear from everybody is yes, there is growing interest in religion and spirituality and an openness on college campuses," said Christian Smith, a professor of sociology at the University of Notre Dame. "Everybody who is talking about it says something seems to be going on."

David D. Burhans, who retired after 33 years as chaplain at the University of Richmond, said many students "are really exploring, they are really interested in trying things out, in attending one another's services."

Lesleigh Cushing, an assistant professor of religion and Jewish studies at Colgate, said: "I can fill basically any class on the Bible."

When Benjamin Wright, chairman of the department of religion studies at Lehigh, arrived 17 years ago, two students chose to major in religion. This year there are 18 religion majors, and there were 30 two and three years ago.