No, according to most religious beliefs and common interpretations of scripture, entering heaven alive is not possible. Death is typically seen as the transition point to the afterlife.
Religious Perspectives
Many religious traditions view death as a necessary prerequisite for entering heaven. The concept of the soul separating from the body upon death is central to this belief. As stated in one reference, "Since death is the normal end to an individual's life on Earth and the beginning of afterlife, entering heaven without dying first is considered exceptional and usually a sign of a deity's special recognition of the individual's piety." [Reference 1, Wikipedia Snippet]. Biblical accounts support this perspective; there are no documented instances of individuals entering heaven while still alive. [Reference 2, Quora Snippet].
While some might interpret near-death experiences or mystical encounters differently, the prevailing theological understanding emphasizes death as the transition to the afterlife, not a bypass.
Exceptions in Mythology and Fiction
It's important to differentiate between religious doctrine and fictional narratives. While some myths or fictional works may portray characters ascending to heavenly realms while still alive, these are not typically considered accurate depictions of religious beliefs. For example, several references mention "Entering Heaven Alive," which is the title of a Jack White album. This is a work of fiction and does not relate to theological assertions. [Reference 3, 9, 10, 11, 12]
Summary
Based on prevalent religious interpretations and scriptural accounts, the answer is clear: individuals cannot enter heaven while still living. Exceptional cases mentioned in some religious texts are typically explained as divinely ordained events rather than a common occurrence. The belief in a soul's departure at death forms the basis for the prevailing view.
