In a simple sense, Wyrd refers to how past actions continually affect and condition the future, but also how the future affects the past. The concept of Wyrd highlights the interconnected nature of all actions and how they influence each other. Wyrd, though related, is not the same as predestination. Unlike predestination, Wyrd allows for the expression and assertion of one’s individual wyrd – essentially one’s will or destiny. However, this is always constrained by the wyrd of others. Nevertheless, one is able to influence to some extent the ‘weaving’ of fate. From the Wikipedia entry for Wyrd
Dennis Wier’s trance model uses term wyrd as a measure of the power of a trance to resist any change in the effects of the trance.