(1) In a woman’s dream the animus may appear as a bull (for animus)-(6)).
(2) The bull may refer to your masculinity (whether you are a man or a woman).
If you are a woman, it may refer to the opposite sex - perhaps expressing your (unconscious) feelings about men in general or a particular man.
(3) Animality’ may be symbolized. A man may experience his own sexuality as something bestial, getting in the way of his ‘higher5 pursuits; an object of disgust or fear.
Similarly, a woman may, consciously or unconsciously, see male sexuality as nasty and brutish; the same may apply to other aspects of masculinity - for example, the fighting, competitive aspect.
If a woman dreams of being chased by a bull, the meaning may be that she is afraid of sexual relations with men. The bull may represent the woman’s father - in which case she may need to dissolve her father fixation. In any case, the woman would need to assert her femininity, not repress it: her own confident femininity has power to tame wild male lust and transform it into tender sensual adoration.
(4) The taming or tethering of a bull may signify the harmonious integration of your animality, especially your sexuality, or the whole of the hidden, unconscious part of your psyche. See also section (8) below.
(5) The sacrifice of a bull may signify a victory (achieved or needed) of spirituality over animality. Sacrifice is the relinquishing or transforming of something in order to attain something more desirable. But the mere killing of a bull might signify the repression of emotion or instinct, or of your masculinity.
(6) Is it the proverbial bull in a china shop: the accident-prone blunderer, the person who never seems to have any luck and for whom everything goes wrong?
If so, the image may be seen as a warning that you need to change your self-image - which may entail changing your job or even your domestic situation.
It is no good thinking of making a living as a concert pianist if you have fingers missing. Take an honest look at yourself and build your career and your life on your strong points, not your weak ones. Give up your fantasies and take a good look at reality. Pay special attention to your dreams: they may now begin to reveal to
you your real strengths - buried talents, perhaps, that need to be dug up from your unconscious. (On persona)
Resist putting the blame for your ‘bad luck’ on someone or something else. Perhaps what we call ‘bad luck’ is actually brought about, not by chance, but by our innermost attitude towards life, which in turn is generated by a negative attitude towards ourselves.
(7) The bull may symbolize fertility (as in mythology). Your unconscious has the power to bring about new life if you allow it to penetrate your conscious mind.
(8) The bull may represent the self (in the Jungian sense), your true nature. Yes, those depths of the psyche that are despised or feared by the conscious ego may eventually be seen - by dint of constant self-exploration - as your true self.
(There are links here with (4) above. There is a famous series of Zen Buddhist drawings depicting the finding, tethering and taming of an ox, representing the search for one’s true nature and its discovery and realization through wrestling with and controlling one’s wild and stubborn egoistic self.)... A Dictionary of Dream Symbols