Simple Words - LTA BA

ལྟ་བ་ lta ba means philosophical view, world-view, attitude, and understanding how the world works. It comes from the verb ལྟ་ lta, regard, see, believe.

As an example of an ལྟ་བ་ is དབུ་མ་ dbu ma, Middle Way, the way of not holding to any extremes, of which the two main extremes are self-existence, རྟག་པ་ rtag pa (note the opposite, མི་རྟག་པ ་mi rtag pa), and nihilism, ཆད་མཐའ་ chad mtha'.

Now, in Sanskrit, དབུ་མ་ is madhyamaka, and someone who has this ལྟ་བ་ is called a madhyamika. Those two terms seems to get easily mixed together. madhya is middle in Sanskrit, and as English and Sanskrit has a common root, it it clear where we got the word middle from.

In the secret teachings, Tantra, ལྟ་བ་ is also one of the names of the central channel.

Anyway, there are many ལྟ་བ་, anyone who as a political position, how to drive in traffic, how schools should work, work ethics, all those are  ལྟ་བ་. One might say that the way we operate in this world, and what results we get, are all based on our own ལྟ་བ་.