Our mindfulness and meditation practices, the various ones we use in our teaching, have specific influences.  All these practices originate from Buddhist, Yogic, and Taoist sources.  However, they are not religious practices.  They can and are used in religious practice, and can certainly be designated as spiritual practice.  But they are not exclusively religious.  These practices can and are engaged in sectarian contexts all the time.  While we do refer to these various teachings in our practice to better understand and share with others, one is not required or even invited to believe anything to make these practices work.  They are basically scientific.  Try it.  See if it works.  That’s all.  Nothing more.