Sikh Dharma is often closely associated with the practice of Kundalini Yoga as taught by Yogi Bhajan. i-SKY has a long established relationship with Kundalini Yoga but not with Sikh Dharma.
Kundalini is a phenomena that exists across and beyond any specific spiritual or religious practice it is the energy of personal awareness and the means of transformation of consciousness. Dharma is the principle of cosmic order - that without which nothing can stand.
Yogi Bhajan was a Sikh who taught Kundalini Yoga to all; some students who committed to follow his teachings and the example of his lifestyle chose to become Sikh too - Guru Dharam is one such. Over time Yogi Bhajan became recognised as a significant religious leader and was then referred to as the Siri Singh Sahib by his followers within Sikh Dharma.
i-SKY has always related to Yogi Bhajan and Kundalini Yoga rather than to the Siri Singh Sahib or Sikh Dharma. Amongst the i-SKY Directors - Guru Dharam is a convert to the Sikh faith, whilst Darryl is an example of a long time Kundalini Yoga teacher who has no more involvement with Sikhism that with any other religion and Judy has no association with Kundalini Yoga as taught by Yogi Bhajan at all.
Kundalini Yoga is a truly ancient practice and as such predates Yogi Bhajan and Sikh Dharma.
Yoga is sometimes characterised as a practice deriving from Hinduism but Kundalini Yoga as taught by Yogi Bhajan has a particular resonance with Sikhism, with its modern emphasis upon the householder, selfless service and worldly spirituality. There is certainly an area of crossover between Kundalini Yoga as taught by Yogi Bhajan and Sikh Dharma - some follow both together but most follow one or other separately. Sikh Dharma has not always been seen as part of mainstream Sikhism; within the Sikh faith as a whole it is fair to say that there are mixed views about Yogi Bhajan and Sikh Dharma - most Sikhs are unlikely to consider that they practice yoga at all and some maintain that the practice of yoga is prohibited.
i-SKY encourage each individual to discern the underlying principle or law that determines universal order (dharma) and experience has taught us that this seems to be more easily done within a like minded community; to serve this end, Yogi Bhajan established Sikh Dharma as a religion in 1971, whereas i-SKY now offer "Spiritual Supervision" to support the individuals journey within his or her existing community or life circumstance.
Yogi Bhajan famously said, "If you can't see God in All you can't see God at all." We, like he, encourage you to find and live your own truth; to Be, not to be what anyone else told you to be, but to BE - to seek dharma.
In that sense we really are all Seeks.
If you would like to understand more about Sikh Dharma in the context of Yogi Bhajans teachings two resources are:
"The Sikh religion began in India a little over 530 years ago and since then Sikhs from the Punjab region of India, who make up less than 2 percent of the population of India, have migrated throughout Europe, the Americas, and Asia, numbering about 28 million worldwide. In the early seventies, Yogi Bhajan, who would later be know as Siri Singh Sahib Bhai Sahib Harbhajan Singh Khalsa Yogiji began to teach in the United States. Through his inspiration, insight and example many Westerners began adopting the Sikh way of life, attracted by the spiritual practices of Sikh Dharma and its egalitarian teachings that respect all religions. Sikhs do not convert people. Sikh populations everywhere participate enthusiastically in outreach activities and contribute to their surrounding communities. The Sikh teachings encourage people to live their lives in service to others, but not as beggars or in poverty. Instead they believe in creating abundance, peace, and prosperity throughout the earth, to serve humanity, and to build interfaith dialogue and cooperation, as well."