More fundamental than religion is our basic human spirituality. We have a basic human disposition towards love, kindness and affection, irrespective of whether we have a religious framework or not. When we nurture this most basic human resource - when we set about cultivating those basic inner values which we all appreciate in others, then we start to live spiritually.
Of course, there are different truths on different levels. Things are true relative to other things; "long" and "short" relate to each other, "high" and "low," and so on. But is there any absolute truth? Something self-sufficient, independently true in itself? I don't think so.
Developing concern for others, thinking of them as part of us, brings self-confidence , reduces our sense of suspicion and mistrust, and enables us to develop a calm mind.
Delusions are states of mind which, when they arise within our mental continuum, leave us disturbed, confused and unhappy. Therefore, those states of mind which delude or afflict us are called 'delusions.'
The motivation of all religious practice is similar: love, sincerity, honesty. The way of life of practically all religious persons is consistent. The teachings of tolerance, love, and compassion are the same.
Given the scale of life in the cosmos, one human life is no more than a tiny blip. Each one of us is a just visitor to this planet, a guest, who will only stay for a limited time. What greater folly could there be than to spend this short time alone, unhappy or in conflict with our companions? Far better, surely, to use our short time here in living a meaningful life, enriched by our sense of connection with others and being of service to them.
Whether we consider the individual, family, local, national or international level, peace must arise from inner peace. For example, making prayers for peace while continuing to harbor anger is futile. Training the mind and overcoming your anger is much more effective than mere prayer. Anger, hatred and jealousy never solve problems, only affection, concern and respect can do that.
Look at South Africa, the former Soviet Union, and the Middle East. They still have many problems, setbacks as well as breakthroughs, but basically changes have happened that were considered unthinkable a decade ago.