is slidably disposed in a DHLA body. The pin housing may be selectively latched and unlatched hydromechanically to the body by the selective engagement of a spring and pressurized engine oil on the lock pins.
During engine operation in valve deactivation mode, the lock pins are withdrawn from locking features, typically an annular groove, in the body, and the pin housing is reciprocally driven in oscillation by the socket end of the RFF which pivots on its opposite pad end on the immobile valve stem as the cam lobe acts on the RFF. The pin housing is returned during half the lost motion reciprocal cycle by lost motion springs disposed within the body.
In a prior art DHLA, the required lost motion displacement is significantly larger than that of aQ:

Meaning of "rat race" in the book of Rich Dad Poor Dad?

I want know what exactly rat race  is and why most of the people fall into that trap?

A:

Wikipedia page says,

A rat race is an endless, self-defeating, or pointless pursuit. The
  phrase equates humans to rats attempting to earn a reward such as
  cheese, to no avail. It may also refer to a competitive struggle to
  get ahead financially or routinely.
The term is commonly associated with an exhausting, repetitive
  lifestyle that leaves no time for relaxation or enjoyment.

In his book Rich Dad Poor Dad, author wants people to get ahead of the rat race by properly managing their Cash Flow or by increasing Assets.

