924. As we have seen, the organ beings constitute such major, fundamental phenomena in the macrobeing's organism that they cannot be replaced, as was the case with cell beings and atom-beings, without inconveniencing or bringing to a halt the organism's outward manifestation. The being cannot therefore replace its heart, brain, lungs etc., other than through so-called "death". The being is therefore severely limited in the length of time it can bind its organ beings to itself and make use of them as organic assistants in its experience of life. The length of time that these organ beings can be bound to a macrobeing constitutes the period of time we call an earthly life. Consequently a being's physical earthly life is determined, in one way, by the life span or the rhythm of hunger and satiation of its organs. Normally the macrobeing's own rhythm of hunger and satiation regarding its enjoyment of life coincides with the rhythm of hunger and satiation of its organs and is released during the same period of time. The being will feel old age to be a blessing or a feeling of satiation with life. However, as a result of a faulty attitude to the laws of life or through superstition or false mental concepts, the abnormality may arise that the macrobeing's rhythm is not at all in concurrence with its organ beings' rhythm. For example, sometimes the individual wants to die long before the onset of old age and at worst commits suicide, just as there may be a situation in which the individual does not want to die at all and even harbours a deep fear of its physical life coming to an end, even though for a long time it has begun to moan and groan about the troubles of old age or the increasing weakening of its organ beings. But this calamity occurs only in situations in which the being, as already mentioned, has false mental concepts or is totally ignorant of the true and eternal nature of life itself. Normally, the rhythm of the organs matches the rhythm of the macrobeing's talent kernels so that the being feels completely content in all stages of its life, both in old age as well as in youth.