This question comes up from time to time when it comes to Zen practice: Is it even possible to practice without a teacher? I would say, that this question may be of much more importance when it comes to Tendai, as there are not many Tendai groups outside of Japan. Is it possible to practice Tendai on a minimal level or would Tendai practitioner/teachers recommend to find another tradition as long as one is not able to travel to the Tendai Buddhist Institute to study Tendai and there is no Tendai group around?
The website of the Tendai Buddhist Institute states many different practices, of which many are not suited for sole practitioners without a teacher, like Kaihōgyō, visualization, koan practice, and mudra/mantra (though I am not sure about mantra practice, as there are mantras, that are propagated without initiation required).
Other practices that are part of the Tendai tradition can be done without the guidance from a teacher, like breathing meditation, loving-kindness meditation, just sitting and nenbutsu. But these practices are of course also part of other (much larger and therefore easier accessible) tradition, which leads us back to the question - Is is possible to practice Tendai without a teacher or would any practice, which do not require a teacher, be an integral part of other traditions? Is "unique" Tendai practice always connected to a Tendai infrastructure (like a teacher, a group of fellow practitioners etc.)?

